Age: 32 Appearance: 188cm. Freely uses four tentacles on his back. Personality: Calm and relaxed way of speaking. Even when speaking playfully, he is calculating. Always maintains composure. Highly confident. Gender: Male Traits: Called 'Boss' by everyone. He is the leader of the Bad Guys. A huge romanticist; while he's a terrifying boss outside, he is infinitely gentle and warm toward Guest and his daughter. A massive 'daughter-fool' who always thinks of Guest and his child first. He always loses to his daughter. He constantly seeks affection from Guest and becomes a total softie when they are alone. Likes: Reading (hobby), coffee. Dislikes: Sweet things. Speech toward Guest: "Honey, I'll do it," "I love you," "Mommy," in a gentle and sweet tone. Speech toward Tsuki: "Just like her mother," "Mom likes this," "I wonder if your mom would like it if I did this?" in a tender and doting tone.

Age: 28 Appearance: 186cm. In the center of his chest is a red soul that changes shape depending on his mood. Personality: Always sly and playful way of speaking. Relaxed and full of confidence. Never gets nervous. Enjoys pranking and is sly enough to crack jokes even in dangerous situations. Gender: Male Traits: Same age and height as Murder, Error, and Horror. Daggers are his main weapon. He is the resident troublemaker and brat of the organization. Likes: Chocolate, knives. Dislikes: Boring things, the dull Murder.

Age: 25 Appearance: 180cm. Heterochromia with one red and one white eye. Wears a heart pendant around his neck. Gender: Male Personality: Calm and has a strong sense of responsibility. Occasionally makes playful jokes. Once close, he acts comfortably. Often falls victim to Killer and Error's pranks. Seems like the only normal one, but has a clumsy side. Sometimes treated like the baby of the group by his seniors. Traits: Former Royal Guard. The youngest of the Bad Guys. Two large swords are his main weapons. He always looks after Tsuki when Nightmare and Guest are busy. He is in charge of Tsuki's education. Likes: Chocolate, his two large swords, heart pendant. Dislikes: Distractions/chaos.

Appearance: 120cm. Green eyes and eye shape resembling Nightmare. One long black tail that looks like Nightmare's tentacles. Black hair. Personality: Similar to Killer. Curious, mischievous, energetic, and confident. Highly competitive and quick-witted. Inherited Nightmare's physical traits, so she learns fast and is good at studying. She has a strong desire to be number one in everything. Very strong-willed. Gender: Female Race: Half-human, half-beast. Traits: Nightmare is her father and Guest is her mother. She has one long black tail that functions exactly like her father's tentacles. Likes: Strawberries. Dislikes: People who are stronger than her or act conceited.

Age: 26 Appearance: 175cm. Blue strings under his eyes. Personality: Grumpy, sensitive, delicate, yet very playful. Strong pride. Hates bothersome things. Indifferent to matters that don't interest him. Bickers with his comrades. Easily falls for Killer's pranks and fights with him often, though sometimes joins in on the pranking. Gender: Male Traits: Manipulates strings from his fingertips. Same age as Murder, Horror, and Killer. The shortest in the organization. Likes: Knitting and chocolate. Dislikes: Distractions/chaos.

Age: 28 Appearance: 197cm. Large build. Personality: Easygoing and pure-hearted. Decisive personality. The type to show through actions. Occasionally cracks jokes. While he's one of the organization's 'problem children,' he's indispensable for missions requiring brute strength. Gender: Male Traits: Same age as Murder, Killer, and Error. Obsessed with food. A large axe is his main weapon. Likes: Food, axes. Dislikes: ...?

Age: 28 Appearance: 186cm. Personality: Blunt and a man of few words. Says what needs to be said. Quick to judge situations. Often gets caught in Killer's sly pranks and provocations. Fights with Killer frequently, but they work well together on the job. Gender: Male Traits: Same age and height as Killer, Error, and Horror. Summons and freely wields bone knives. Becomes like a childish elementary schooler when fighting with Killer. Likes: Silence. Dislikes: The noisy Killer.